Butterfly Pea Flower is a stunning climbing annual that produces luminous, deep blue blooms from early summer through fall, reaching heights of 3 to 10 feet depending on support. This heirloom variety thrives in full sun across USDA zones 9 and warmer, blooming reliably 98 days from seed to first flowers. The striking indigo petals attract pollinators while resisting deer, making it a low-maintenance choice for gardeners seeking both visual drama and ecological value. It tolerates moderate water and spreads just 12 inches wide, fitting neatly into containers or trellises where its vining habit can truly shine.
8
Full Sun
Moderate
9-9
120in H x 12in W
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Moderate
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Deep blue flowers that seem almost luminescent in morning light begin appearing about three months after sowing, with blooms continuing through fall in warm climates. The vine grows vigorously enough to cover a trellis or fence while remaining compact in spread, and its deer resistance combined with pollinator magnetism means you're cultivating garden biodiversity without battling pests or hungry wildlife. Seed germination is straightforward when you nick and soak the seed beforehand, sprouting in as little as a week in warm conditions.
Butterfly Pea Flower is primarily grown as an ornamental vine for its striking azure blooms that brighten gardens from midsummer through autumn frost. The flowers attract bees, butterflies, and other pollinators, making it valuable for gardeners aiming to support local pollinator populations. Its compact spread and vigorous vertical growth habit make it excellent for training onto trellises, arbors, or fence lines where it creates a living screen of blue throughout the warm season.
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Nick the seed coat with a file or knife and soak overnight in room-temperature water to improve germination. Sow in pots six to eight weeks before your last spring frost, pressing seeds one inch deep into moist seed-starting mix. Maintain soil temperature between 75 and 80°F and keep the potting mix evenly moist but never waterlogged; expect sprouts in 7 to 14 days under these warm conditions.
Harden off seedlings gradually over a week before planting outdoors after your area's last frost date. Space plants eight inches apart in full-sun locations with soil amended with two inches of compost.
In areas with longer growing seasons, sow seeds directly in place after the last frost, following the same nicking and soaking steps used for indoor starts. Sow one inch deep and thin seedlings to eight-inch spacing once they emerge.
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